Insulator



Patented ct. 27, 1931 UNITED STATES PATENT OFFICE I:VICTOIRIr FREDERICKHOUDE, F WINNIPEG, MANITOBA, CANADA, ASSIGNOR OF ONE- HALF TO FERDINANDRITCHIE LA FLECHE, OF HEADINGLY, MANITOBA, CANADA INSULATOR Applicationled June 21,

My invention relates to improvements in insulators more particularlyreferring to line wire insulators, one of the ob]ects oi my inventionbeing to provide an insulator with wire receiving socket and clampingdevice for readily securing the wire in place eliminating the necessityfor binding or looping the wire for attachment purposes.

A further object of my invention is to provide a wire clamping devicefor insulators that operates to clamp the Wire and securely hold itagainst longitudinal movement in either direction and further to securethe wire without liability of injury to, or weakr ening of, the wire.

, Amy invention resides in the combination of parts and elementshereinafter more particularly described and claimed, reference alsobeing had to the accompanying drawings wherein like characters ofreference indicate :like parts throughout the diHerent views and gagedand shown gripping a wire or con- 35r ductor.

Fig. 2 is a. rear elevation of the device complete with the clampingdevice secured in engagement with a wire.

Fig. 3 is a side elevation of the device shown partly sectioned andillustrated with the lockinfr member disengaged.

ig. 4 is a detail view of the clamping device.

Having reference to the accompanying drawings the device consists of abody 1 of porcelain or other insulating material cylindrical shaped ingeneral conformity with insulators of this character. The interior ofthe body 1 is formed with the usual screw threaded bore 2 for receptionof a threaded 1930. Serial No. 462,914.

receiving pin for attachment of the insulator to its supporting tree orthe like.

The body l is formed with a rounded top 3 sloping outward to form aridge 4 which in conjunction with a further ridge 0r encircling raisedportion 5 forms an intervening depression 6 as normally used forattachment of a wire to the ordinary insulator of this type. The lowerraised portion 5 can if desired be dispensed withk in the present devicefor ordinary use but could conveniently be retained to facilitateattachment of line ends.

Projecting from the body l is a shoulder 7 provided with spaced apartupwardly extending lugs 8 8. lntervening between the lugs 8 8 and thebody l is a transverse socket 9 for reception of a wire or likeconductor which is approximately aligned with the depression 6 wheresuch depression is retained. The ycentral portion of the socket 9 isformed hollowed out somewhat below the level of the top of the shoulder7 leaving unsupported a small part of the underside of ar wire 10received in the socket, the said wire being supported on top of theshoulder 7. The intervening hollow so formed in the top of the shoulder7 is opposed to a clamping device l1 pivoted on a pin 12 set in the lugs8 8.

The clamp 11 consists of a rectangular block formed preferably ofcopper, or like material, similar to the conductor, and is provided onits under face with a curved engaging `surface generally conforming tothe wire tobe engaged. Intermediately pro? vided on the curvedA face ofthe said clamp is a slight, somewhat V shaped protuberance 18, see Fig.k4, adapted to press against the wire 10 and in conjunction with theopposed hollow in the shoulder 7 create a sli ht depression in the wirelessening possibility of the wire slipping in either direction.

The rear of the top y2 of the body is formed with a projecting portion15 the under face of which is spaced from the top of the lugs 8 8 toleave an intervening passageway communicating with the socket 9 forreception of the wire 10. Formed bisecting the top 2 eX- tending overthe rear face of the said top is a groove 16 for reception of thelocking member 1-l. The said groove 16 extends at its forward extremityinto the depression 6 terminating in a slight indentation as indicatedat 1? which is adapted to receive a projection 1S formed adjacent theend of the locking member 1i to secure the said member in place. Thelocking member 14 is angle-shaped in general conformity with the contourof the top 2 and is adapted to nt into snug engagement with the wall ofthe groove 16. ln its engagement with the clamp 11 the locking member 14is adapted when locked in place to engage the curved face of the clampon the wire 10 and lock the said wire against longitudinal movement.

By turning the locking member back into contact with the shoulder 7 thesocket 9 is readily accessible for reception of the wire 10 through thepassageway formed between the extremities of the lugs 8-8 and theprojection 15. lilith the wire positioned in the socket 9 the lockingmember can be carried forward and secured with the projection 18 engagedin the indentation 17 and the protuberance 13 on the clamp 11 securingthe wire 10 in place.

Having thus described my invention what 1 claim is 1. An insulatorcomprising a body provided with a projecting shoulder with a pair ofspaced apart lugs upwardly extending therefrom, the upper face of saidshoulder forming a transverse wire receiving socket intervening betweensaid lugs and body, a clamp pivoted in said lugs and adapted to bearagainst a wire received in said socket and a resilient locking member onsaid clamp engageable on said body.

2. iin insulator comprising a body formed with a groove across its uppersurface terminating forwardly in an indentation, a projecting shoulderformed on said body with a pair of spaced apart lugs upwardly extendingtherefrom said shoulder being formed with a transverse wire receivingsocket on its upper face intervening between said lugs and body, a clamppivoted on said lugs and adapted to be engaged with a wire received insaid socket and lock said wire against longitudinal movement, and aresilient locking member on said clamp receivable in the groove formedon the upper face of said body and terminating in a projectionengageable in the indentation at the termination of said groove.

3. An insulator comprising a body formed with a groove across its uppersurface, a projecting shoulder formed on said body with pair of spacedapart lugs upwardly extending therefrom, said shoulder being formed witha transverse wire receiving socket on its upper face intervening betweensaid lugs and body said socket being formed intermediately recessed, aclamp pivoted on said lugs engageable with a wire received in saidsocket to lock said wire against longitudinal movement, the underengaging surface of said clamp being curved in general conformity withsuch a wire and formed with a protuberance opposed to the recessedportion of said socket, and a resilient locking member on said clampreceivable in the groove formed across said body and engageable on saidbody.

4. An insulator comprising a body formed with a rounded head withprojecting rear portion and .having a groove forwardly extendingracrosssaid head terminating in an indentation, a. projecting shoulder formedon said body below said projecting portion and having a pair of spacedapart lugs upwardly extendingtherefrom lea fing a communicating passagebetween said lugs and projectmg portion terminating in a transverse wirereceiving socket formed on the upper face of said shoulder said socketbeing intermediately recessed, a clamp pivoted on said lugs adapted tobe engaged with a wire received in said socket and lock said wireagainst 1ongitudinal movement the under engaging surface of said clampbeing curved in general conformity withsuch a wire and formed with aprotuberance opposed to the recessed portion of said socket and aresilient locking member on said clamp receivable in the groove formedon the head of said body and terminating in a projection engageable inthe indentation at the termination of said groove.

V. F. HOUDE.

